diff --git a/nodebuilder b/nodebuilder
index bf1ed2d28..efb3dc578 100755
--- a/nodebuilder
+++ b/nodebuilder
@@ -186,6 +186,7 @@ Type=Application
 Icon=${SHORTCUT_IMAGE_FILE}
 MimeType=x-scheme-handler/bitcoin;
 Categories=Office;Finance;P2P;Network;Qt;
+SingleMainWindow=true
 StartupNotify=true
 StartupWMClass=Bitcoin-Qt
 EOF